webshot.js 19 KB

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  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", { value: true });
  3. const fs_1 = require("fs");
  4. const util_1 = require("util");
  5. const axios_1 = require("axios");
  6. const CallableInstance = require("callable-instance");
  7. const html_entities_1 = require("html-entities");
  8. const pngjs_1 = require("pngjs");
  9. const puppeteer = require("playwright");
  10. const sharp = require("sharp");
  11. const temp = require("temp");
  12. const loggers_1 = require("./loggers");
  13. const koishi_1 = require("./koishi");
  14. const utils_1 = require("./utils");
  15. const xmlEntities = new html_entities_1.XmlEntities();
  16. const ZHType = (type) => new class extends String {
  17. constructor() {
  18. super(...arguments);
  19. this.type = super.toString();
  20. this.toString = () => `[${super.toString()}]`;
  21. }
  22. }(type);
  23. const typeInZH = {
  24. photo: ZHType('图片'),
  25. video: ZHType('视频'),
  26. animated_gif: ZHType('GIF'),
  27. };
  28. const logger = loggers_1.getLogger('webshot');
  29. class Webshot extends CallableInstance {
  30. constructor(wsUrl, mode, onready) {
  31. super('webshot');
  32. this.connect = (onready) => axios_1.default.get(this.wsUrl)
  33. .then(res => {
  34. logger.info(`received websocket endpoint: ${JSON.stringify(res.data)}`);
  35. const browserType = Object.keys(res.data)[0];
  36. return puppeteer[browserType]
  37. .connect({ wsEndpoint: res.data[browserType] });
  38. })
  39. .then(browser => this.browser = browser)
  40. .then(() => {
  41. logger.info('launched puppeteer browser');
  42. if (onready)
  43. return onready();
  44. })
  45. .catch(error => this.reconnect(error, onready));
  46. this.reconnect = (error, onready) => {
  47. logger.error(`connection error, reason: ${error}`);
  48. logger.warn('trying to reconnect in 2.5s...');
  49. return util_1.promisify(setTimeout)(2500)
  50. .then(() => this.connect(onready));
  51. };
  52. this.extendEntity = (media) => {
  53. logger.info('not working on a tweet');
  54. };
  55. this.renderWebshot = (url, height, webshotDelay, ...morePostProcessings) => {
  56. temp.track();
  57. const jpeg = (data) => data.pipe(sharp()).jpeg({ quality: 90, trellisQuantisation: true });
  58. const sharpToFile = (pic) => new Promise(resolve => {
  59. const webshotTempFilePath = temp.path({ suffix: '.jpg' });
  60. pic.toFile(webshotTempFilePath).then(() => resolve(`file://${webshotTempFilePath}`));
  61. });
  62. const promise = new Promise((resolve, reject) => {
  63. const width = 720;
  64. const zoomFactor = 2;
  65. logger.info(`shooting ${width}*${height} webshot for ${url}`);
  66. this.browser.newPage({
  67. bypassCSP: true,
  68. deviceScaleFactor: zoomFactor,
  69. locale: 'ja-JP',
  70. timezoneId: 'Asia/Tokyo',
  71. userAgent: 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
  72. })
  73. .then(page => {
  74. const startTime = new Date().getTime();
  75. const getTimerTime = () => new Date().getTime() - startTime;
  76. const getTimeout = () => Math.max(500, webshotDelay - getTimerTime());
  77. page.setViewportSize({
  78. width: width / zoomFactor,
  79. height: height / zoomFactor,
  80. })
  81. .then(() => page.route('*:\/\/video.twimg.com\/**', route => { route.abort(); }))
  82. .then(() => page.goto(url, { waitUntil: 'load', timeout: getTimeout() }))
  83. .then(() => Promise.race([
  84. page.waitForSelector('article'),
  85. page.click('#placeholder+#ScriptLoadFailure input[value="Try again"]', { timeout: getTimeout() }),
  86. ]))
  87. .then(() => page.addStyleTag({
  88. content: 'header,#layers{display:none!important}article{background-color:transparent!important}' +
  89. '[data-testid="caret"],[role="group"],[data-testid="tweet"]+*>[class*=" "]+div:nth-last-child(2){display:none}',
  90. }))
  91. .then(() => page.addStyleTag({
  92. content: '*{font-family:-apple-system,".Helvetica Neue DeskInterface",Hiragino Sans,Hiragino Sans GB,sans-serif!important}',
  93. }))
  94. .then(() => page.evaluate(() => {
  95. const poll = setInterval(() => {
  96. document.querySelectorAll('div[data-testid="placementTracking"]').forEach(container => {
  97. if (container.querySelector('div[role="button"] svg')) {
  98. container.innerHTML = container.innerHTML;
  99. clearInterval(poll);
  100. }
  101. });
  102. }, 250);
  103. }))
  104. .then(() => page.waitForSelector('xpath=//section/*/*/div[.//article[not(.//*[@data-testid]//time)]]', { timeout: getTimeout() }))
  105. .then(handle => handle.$$('xpath=..//a[contains(@href,"content_you_see")]/../../..//*[@role="button"]')
  106. .then(sensitiveToggles => {
  107. const count = sensitiveToggles.length;
  108. if (count)
  109. logger.info(`found ${count} sensitive ${count === 1 ? 'tweet' : 'tweets'} on page, uncollapsing...`);
  110. return utils_1.chainPromises(sensitiveToggles.filter(toggle => toggle.isVisible()).map(toggle => () => toggle.click()));
  111. })
  112. .then(() => handle))
  113. .then(handle => handle.$('[data-testid="tweet"]').then(owner => owner ? handle : null))
  114. .catch((err) => {
  115. if (err.name !== 'TimeoutError')
  116. throw err;
  117. logger.warn(`navigation timed out at ${getTimerTime()} seconds`);
  118. return null;
  119. })
  120. .then((handle) => {
  121. if (handle === null)
  122. throw new puppeteer.errors.TimeoutError();
  123. return handle.evaluate(div => {
  124. try {
  125. const selector = '[data-testid="tweet"]>:nth-child(2)>:first-child a';
  126. const getProfileUrl = () => (div.querySelector(selector) || { href: '' }).href;
  127. const ownerProfileUrl = getProfileUrl();
  128. while (div = div.previousElementSibling) {
  129. if (getProfileUrl() !== ownerProfileUrl)
  130. continue;
  131. return document.documentElement.scrollTop = window.scrollY + div.getBoundingClientRect().top;
  132. }
  133. }
  134. catch (_a) { }
  135. document.documentElement.scrollTop = 0;
  136. }).then(() => handle);
  137. })
  138. .then(handle => handle.evaluate(div => {
  139. const cardImg = div.querySelector('div[data-testid^="card.layout"][data-testid$=".media"] img');
  140. if (typeof (cardImg === null || cardImg === void 0 ? void 0 : cardImg.getAttribute('src')) === 'string') {
  141. const match = /^(.*\/card_img\/(\d+)\/.+\?format=.*)&name=/.exec(cardImg === null || cardImg === void 0 ? void 0 : cardImg.getAttribute('src'));
  142. if (match) {
  143. const [media_url_https, id_str] = match.slice(1);
  144. return {
  145. media_url: media_url_https.replace(/^https/, 'http'),
  146. media_url_https,
  147. url: '',
  148. display_url: '',
  149. expanded_url: '',
  150. type: 'photo',
  151. id: Number(id_str),
  152. id_str,
  153. sizes: undefined,
  154. };
  155. }
  156. }
  157. }))
  158. .then(cardImg => {
  159. if (cardImg)
  160. this.extendEntity(cardImg);
  161. })
  162. .then(() => utils_1.chainPromises(morePostProcessings.map(func => () => func(page))))
  163. .then(() => util_1.promisify(setTimeout)(getTimeout()))
  164. .then(() => page.evaluate(() => document.activeElement.blur()))
  165. .then(() => page.screenshot())
  166. .then(screenshot => {
  167. new pngjs_1.PNG({
  168. filterType: 4,
  169. deflateLevel: 0,
  170. }).on('parsed', function () {
  171. const idx = (x, y) => (this.width * y + x) << 2;
  172. let boundary = null;
  173. const x = zoomFactor * 2;
  174. for (let y = x; y < this.height; y += zoomFactor) {
  175. if (this.data[idx(x, y)] !== this.data[idx(x, y - zoomFactor)] &&
  176. this.data[idx(x, y)] === this.data[idx(x + zoomFactor * 10, y)]) {
  177. boundary = y;
  178. break;
  179. }
  180. }
  181. if (boundary !== null) {
  182. logger.info(`found boundary at ${boundary}, cropping image`);
  183. this.data = this.data.slice(0, idx(this.width, boundary));
  184. this.height = boundary;
  185. sharpToFile(jpeg(this.pack())).then(path => {
  186. logger.info(`finished webshot for ${url}`);
  187. resolve({ path, boundary });
  188. });
  189. }
  190. else if (height >= 8 * 1920) {
  191. logger.warn('too large, consider as a bug, returning');
  192. sharpToFile(jpeg(this.pack())).then(path => {
  193. resolve({ path, boundary: 0 });
  194. });
  195. }
  196. else {
  197. logger.info('unable to find boundary, try shooting a larger image');
  198. resolve({ path: '', boundary });
  199. }
  200. }).parse(screenshot);
  201. })
  202. .catch(err => {
  203. if (err instanceof Error && err.name !== 'TimeoutError')
  204. throw err;
  205. logger.error(`error shooting webshot for ${url}, could not load web page of tweet`);
  206. resolve({ path: '', boundary: 0 });
  207. })
  208. .finally(() => { page.close(); });
  209. })
  210. .catch(reject);
  211. });
  212. return promise.then(data => {
  213. if (data.boundary === null) {
  214. return this.renderWebshot(url, height + 1920, webshotDelay, ...morePostProcessings);
  215. }
  216. else
  217. return data.path;
  218. }).catch(error => this.reconnect(error)
  219. .then(() => this.renderWebshot(url, height, webshotDelay, ...morePostProcessings)));
  220. };
  221. this.fetchMedia = (url) => new Promise((resolve, reject) => {
  222. logger.info(`fetching ${url}`);
  223. axios_1.default({
  224. method: 'get',
  225. url,
  226. responseType: 'arraybuffer',
  227. timeout: 150000,
  228. }).then(res => {
  229. if (res.status === 200) {
  230. logger.info(`successfully fetched ${url}`);
  231. resolve(res.data);
  232. }
  233. else {
  234. logger.error(`failed to fetch ${url}: ${res.status}`);
  235. reject();
  236. }
  237. }).catch(err => {
  238. logger.error(`failed to fetch ${url}: ${err instanceof Error ? err.message : err}`);
  239. reject();
  240. });
  241. }).then(data => {
  242. var _a;
  243. return (ext => {
  244. const mediaTempFilePath = temp.path({ suffix: `.${ext}` });
  245. fs_1.writeFileSync(mediaTempFilePath, Buffer.from(data));
  246. const path = `file://${mediaTempFilePath}`;
  247. switch (ext) {
  248. case 'jpg':
  249. case 'png':
  250. return koishi_1.Message.Image(path);
  251. case 'mp4':
  252. return koishi_1.Message.Video(path);
  253. }
  254. logger.warn('unable to find MIME type of fetched media, failing this fetch');
  255. throw Error();
  256. })(((_a = (/\?format=([a-z]+)&/.exec(url))) !== null && _a !== void 0 ? _a : (/.*\/.*\.([^?]+)/.exec(url)))[1]);
  257. });
  258. if (this.mode = mode) {
  259. onready();
  260. }
  261. else {
  262. this.wsUrl = wsUrl;
  263. this.connect(onready);
  264. }
  265. }
  266. webshot(tweets, callback, webshotDelay) {
  267. let promise = new Promise(resolve => {
  268. resolve();
  269. });
  270. tweets.forEach(twi => {
  271. promise = promise.then(() => {
  272. logger.info(`working on ${twi.user.screen_name}/${twi.id_str}`);
  273. });
  274. const originTwi = twi.retweeted_status || twi;
  275. let messageChain = '';
  276. let author = `${twi.user.name} (@${twi.user.screen_name}):\n`;
  277. if (twi.retweeted_status)
  278. author += `RT @${twi.retweeted_status.user.screen_name}: `;
  279. let text = originTwi.full_text;
  280. promise = promise.then(() => {
  281. if (originTwi.entities && originTwi.entities.urls && originTwi.entities.urls.length) {
  282. originTwi.entities.urls.forEach(url => {
  283. text = text.replace(new RegExp(url.url, 'gm'), url.expanded_url);
  284. });
  285. }
  286. if (originTwi.extended_entities) {
  287. originTwi.extended_entities.media.forEach(media => {
  288. text = text.replace(new RegExp(media.url, 'gm'), this.mode === 1 ? typeInZH[media.type] : '');
  289. });
  290. }
  291. if (this.mode > 0)
  292. messageChain += (author + xmlEntities.decode(text));
  293. });
  294. if (this.mode === 0) {
  295. const url = `https://mobile.twitter.com/${twi.user.screen_name}/status/${twi.id_str}`;
  296. this.extendEntity = (cardImg) => {
  297. var _a, _b;
  298. originTwi.extended_entities = Object.assign(Object.assign({}, originTwi.extended_entities), { media: [
  299. ...(_b = (_a = originTwi.extended_entities) === null || _a === void 0 ? void 0 : _a.media) !== null && _b !== void 0 ? _b : [],
  300. cardImg,
  301. ] });
  302. };
  303. promise = promise.then(() => this.renderWebshot(url, 1920, webshotDelay))
  304. .then(fileurl => {
  305. if (fileurl)
  306. return koishi_1.Message.Image(fileurl);
  307. return '[截图不可用] ' + author + text;
  308. })
  309. .then(msg => {
  310. if (msg)
  311. messageChain += msg;
  312. });
  313. }
  314. if (1 - this.mode % 2)
  315. promise = promise.then(() => {
  316. if (originTwi.extended_entities) {
  317. return utils_1.chainPromises(originTwi.extended_entities.media.map(media => () => {
  318. let url;
  319. if (media.type === 'photo') {
  320. url = media.media_url_https.replace(/\.([a-z]+)$/, '?format=$1') + '&name=orig';
  321. }
  322. else {
  323. url = media.video_info.variants
  324. .filter(variant => variant.bitrate !== undefined)
  325. .sort((var1, var2) => var2.bitrate - var1.bitrate)
  326. .map(variant => variant.url)[0];
  327. }
  328. const altMessage = `\n[失败的${typeInZH[media.type].type}:${url}]`;
  329. return this.fetchMedia(url)
  330. .catch(error => {
  331. logger.warn('unable to fetch media, sending plain text instead...');
  332. return altMessage;
  333. })
  334. .then(msg => { messageChain += msg; });
  335. }));
  336. }
  337. });
  338. if (this.mode === 0) {
  339. if (originTwi.entities && originTwi.entities.urls && originTwi.entities.urls.length) {
  340. promise = promise.then(() => {
  341. const urls = originTwi.entities.urls
  342. .filter(urlObj => urlObj.indices[0] < originTwi.display_text_range[1])
  343. .map(urlObj => `\n\ud83d\udd17 ${urlObj.expanded_url}`);
  344. if (urls.length) {
  345. messageChain += urls.join('');
  346. }
  347. });
  348. }
  349. }
  350. if (originTwi.is_quote_status) {
  351. promise = promise.then(() => {
  352. var _a, _b;
  353. const match = /\/status\/(\d+)/.exec((_a = originTwi.quoted_status_permalink) === null || _a === void 0 ? void 0 : _a.expanded);
  354. const blockQuoteIdStr = match ? match[1] : (_b = originTwi.quoted_status) === null || _b === void 0 ? void 0 : _b.id_str;
  355. if (blockQuoteIdStr)
  356. messageChain += `\n回复此命令查看引用的推文:\n/twitter_view ${blockQuoteIdStr}`;
  357. });
  358. }
  359. promise.then(() => {
  360. logger.info(`done working on ${twi.user.screen_name}/${twi.id_str}, message chain:`);
  361. logger.info(JSON.stringify(koishi_1.Message.ellipseBase64(messageChain)));
  362. const twiId = twi.retweeted_status ? twi.retweeted_status.id_str : twi.id_str;
  363. callback(twiId, messageChain, xmlEntities.decode(text), author);
  364. });
  365. });
  366. return promise;
  367. }
  368. }
  369. exports.default = Webshot;